Nut-lock



(No Model.)

0. S. WENGER.

NUT LOOK.

No. 366,285. Patented June 21,1887.

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UNITED STATES PATENT QFFICE.

CLAYTON S. \VENGER, OF WEST EARL, PENNSYLVANIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 365,285, dated June 21,1887.

Application liled October i, 1886. Serial No. 215,231.

To all whom it may concern:

Be it known that l, CLxY'roN S. \VENGER, a citizen of the United States, residing at \Vest Earl, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Nnt-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which c it appertains to make and use the same.

This invention relates to a nut locking device for bolts in general, but more especially fish-plate bolts for railroad use.

The said invention consists partly in the combination, with an ordinary nut, of a raised sleeve or collar on its upper side, solid with the body of the nut and forming an integral part of the same. The thread, which is tapped in the nut, continuing through the collar, is consequently lengthened, thereby adding strength to the nut. Around the upper side of this collar, and forming an integral part of the same, are segments of a flange, and through one of these segments and the collar and a part of the top of the nut at right angles with the bolt-thread is a rectangularslot, and connected with and at right angles with this slot on the inside of the nut the full length of the thread is a rectangular key-seat.

The said invention further consists in a wedge-shaped key with V-shaped ribs on its face its entire length, and on its large end a head turned at right angles with and from its ribbed face, but flush with the sides.

It also consists in providing a hexagonal key locking washer with a projecting tongue from the apex of two of its angular sides, and its center cut out so as to conform to and pass over the collar, with its segmental flanges on the top side of said nut, this washer being in combination with the nut-collar, segmental flanges, and locking-key aforesaid.

The construction and operation will be fully understood from the following specification and the accompanying drawings, similar letters referring to similar parts.

Figure 1 represents a sectional side elevation through the lines A A, Fig. 2; Fig. 3, a perspective top and side view of thenut off of the bolt, showing the collar and segmental flanges on the top part of the same. Fig. 2 is a full top plan view of Fig. 1; Fig. 4, a perspective (No model.)

side and top view of the hexagonal key locking-washer, showing the inside out out to suit the segmental flanges and collar; Fig. 5, a perspective side, top, and face view of the locking-key; Fig. (5, a sectional view through the lines A A, Fig. 5, showing another form of wedgeface.

In Fig. 1, M represents the thread of a bolt. It may be of any style, the kind, size, or length of thread not being essential to the working of the device.

0 represents the body of the nut; c, the collar on its upper face; 0 and 0', portion of the segmental flange fast to the same; D, the lockingkey; B, the locking-washer; and b, the tongue.

In perspective view, Fig. 3, the construction of the nut itself is fully shown, with the pro jccting collar 0 on its top side. Through the collar and into the top of the nut is euta rectangular slot or recess, a, and on the upper part of the collar, and extending on both sides of the slot a, are segments 0 and c of a flange,

these segments occupying one-third of the whole circumference of the collar 0, whose external periphery is divided into three equal parts. On one side of the radial line which would be opposite the slot a is another segment of this flange 0. This segment is comparatively small, and does not occupy more than onefourth of the space of the flanges c and 0". At right angles with the slot a, and the whole length of thenutis akeyseat,c. (Fully shown in Fig. 1.) It is not essential to make the nut hexagonal, as any shaped nut desired will answer the purpose as well.

In Fig. at the construction of the key lockingwasher B is shown, its external circumference being hexagonal in, form, and the tongue b is shown connected at the apex of two of its angular sides. The internal diameter at is slightly larger than the collar 0 on the nut G, and the diameters of the recess 7) and l) are also larger than the outside diameter of the segmental flanges c c a. By this construction it is intended that the washer B shall slip over the segmental flanges on top of the collar 0, the recess b passing over the two flanges c and 0", and the recess I)" over the small one 0. The

washer is of a thickness to fill the space between the lower part of the flange and the top of the nut, and when in the position described it is intended that with a wrench on the hexagonal sides, or bushing on the side of the tongue, the washer may be turned so as to bring'the tongue over the slot 11 in the top of the nut G. The sections of the washer that fit around the body of the collar 0 will then be under the flanges c 0 0 which Will prevent it from rising up, andthe tongue I), springing into the slot a, will prevent the washer from turning from this position unless the tongue is sprung up out of the slot a. This washer is intended to be made of steel, iron, or any pliable composition. When steel is used, the tongue b, which is bent down slightly in the process of manufacture, will spring into the slot a and prevent the washer from turning. WVhen wrought-ironis used, it is intended to bring the tongue b in position over the slot 0, and bend it down by means of a hammer or any tool suitable for the purpose.

In Fig. 5 the construction of the key itself is shown, d representing the top, and D the body. Onthe face of the body are two V- shaped ribs, d One of these ribs on this face would alone lock the nut in position; but I prefer to make it doubly secure by placing two there, and they might be made V-shaped, as shown in Fig. 5, or in the shape shown in Fig. 6, which would then represent asection through the dotted lines A A of Fig. 5. In eithercase the result would be the same.

Having thus described the construction of this device, the manner of working it is as follows: The bolt M being placed in position,the nut Ois screwed down firmly on the thread, and to lock it fast in this position I place the body of the locking-keyD in Fig. 5 in the key-seat a in Fig. 1. The key is now drivendown into the nut 0 until the head (1' is flush with the top of the nut. By this means the V-shaped ribs d are forced into the threads of the bolt M, which will effectually prevent the nut G from turning on the bolt M. In order to keep this key in position in the nut O, I slip the key locking-washer B down on the outside of the collar 0 and the segmental flanges 0' c c. The tongueb would be in position indicated by the dotted lines b in Fig. 2. Tie lug bis now turned from this position in the direction of the arrow b until it is immediately over the slot a, under the nut 0, when, if it is steel, it will spring in itself, and if of iron is bent over the head 0f th'e key D and into the slot a, as shown at b in Fig. 1. By turning the washer B in this manner the segments of its internal circumference m are brought under the lugs c c 0 and as the sta es tongue I) is then bent over the key D into the slot a of the nut 'O the washer cannot turn and the key D cannot work up out of its seat a, becauselugs c c 0 hold the washer B down on the same at d.

To remove the nut G from the bolt M, the tongue I) is sprung or forced out of the slot a and turned to the position of the dotted lines b, when the washer B may be removed from the nut O. A swage is now driven into the slot to under the head of the key D, and by this means the key is drawn from its seat ain the nut C. There now being nothing to lock the nut 0 fast to the bolt M, it may be easily removed at will.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is a 1. The nut 0, having an upwardly-projecting collar, 0, around the top of which are the segments of a flange, c 0* 0", adapted to hold the washer B in place, as set forth, said nut being threaded to suit the bolt M, and having a key-seat, a, cut its entire length across said thread, adapted to receive the key D, and a slot, a, through the collar 0 and upper face of said nut, to receive the head of the key D and tongue I) of the washer B, as set forth, in combination with-the wedge-shaped key D,having V shaped ribs on its face its entire length, adapted to be forcedinto the thread of the bolt M, as set forth, and the hexagonal washer B, attached to which is the tongue 6 and its central opening conforming in shape to the coll ar c and the segments of flanges c c 0 and adapted to pass over said segments and turn under them, so as to lock the key D in place,

and the tongue b, fitting in the slot at in the face ofsaidnut 0, all substantially as set forth, and for the purpose described.

2. The combination,in aunt-locking device, of the following elements: the nut G, with the collar 0, segmental flanges c 0 0 slot 11, and key-seat a, with the locking-washer B, hexagonal inform, with the tongue I) attached,its internal shape conforming to the collar 0 and segments of flangesc c 0 and. the nut O, and the key D with its double-ribbed face, when constructed substantially as herein set forth and described. I

In testimony whereofI affix my signature in presence of two witnesses.

CLAYTON S. \VENGER.

Witnesses:

GEO. A. LANE,

J. MING E. 

